V2EX power budget

Power Budget

定义 Definition

power budget(功耗预算/电源预算):在电子、电气或计算系统设计中,为系统、设备或某个模块预先分配并限定的可用功率(或能耗)上限,用于确保供电、散热与续航等目标可达成。

发音 Pronunciation (IPA)

/par bdt/

例句 Examples

The power budget for this sensor is 1 watt.
这个传感器的功耗预算是 1 瓦。

To meet the spacecraft’s power budget, engineers scheduled high-load instruments so they wouldn’t run at the same time, preventing battery drain and overheating.
为了满足航天器的功耗预算,工程师错开高负载仪器的工作时间,避免电池过度消耗并防止过热。

词源 Etymology

该短语由 power(功率/电力)与 budget(预算、限额)组合而成。budget 源自法语 bougette(小袋子),引申为“资金规划与限额”;在工程语境中进一步泛化为对资源(如功率、热、时间、带宽)的配额与约束,因此 power budget 就是“对可用功率的预算/分配”。

相关词 Related Words

文学与作品 Literary Works

  • The Art of Electronics(Horowitz & Hill)在电路设计与供电规划语境中常讨论“功耗/电源预算”思想。
  • Designing Embedded Hardware(John Catsoulis)嵌入式系统设计中涉及电源设计、功耗控制与预算分配。
  • CMOS VLSI Design: A Circuits and Systems Perspective(Weste & Harris)VLSI/CMOS 设计中与低功耗设计、功率约束与预算相关的内容密切。
  • Computer Organization and Design(Patterson & Hennessy)体系结构层面常以功耗与能效约束(可表述为功耗预算)讨论设计权衡。
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